Pipe coupling



' 1,'2, May 10,1927, A. FARNSTROM 6 8132 PIPE COUPLING Filedfsept. 24. 1924 amour/tot .Ji dbifilarnstram I 1 Further objects of t Patented May 10, 1927.

I 1,628,132 UNITED STATES PATENT OFFICE...

ALBIN rarmsraox, or person, mcmean, mums or roarY-nvn one-nunnnnnrns TO s'rmnav rons, or ROYAL oax, mcnxcan.

:exrn cournme.

Application filed September 24, 1924. Serial mi. 730,071.

The invention relates to pipe couplings and has 'for one of its objects the provision of a pipe coupling which may be cheaply manufactured and readily applied and which will effectively seal the gap between the adjacent ends of the pipes. Another object is the provision of an improved coupling for pipes permitting of relative angular movement of these ipes.

lie invention reside in the novel features of construction and combinations. and arrangements of parts as more fully hereinafter set forth.

' In the drawings:

Figure 1 is a planview, partlybroken. away, of a pipe coupling embodying my in vention;

Figure 2 is a cross section on the line 2-2 of Figure 1;

Figure 3 is a longitudinal sectional eleva- 1 tiouthrough the pipe coupling;

Figur 4 is a perspective view of adjacent efids of a pair of pipes showing the packingmembers.

1 and 2 are cooperating lower and upper segmental clamping sections of the pipe couplm the former havin the substantially para lel upwardly exten in cars 3 and the inner longitudinally exten mg shoulders 1 at its opposite sides.- The clamping section 1 2 is engageable between the ears 3 and has the longitudinally extending shoulders 5 at its opposite sides adapted to cooperate with the shoulders 4 of the clamping section 1. This clamping section 2 also has the'spaced transversely sides of its upper portlon' and embracing the ears 3 of the clamping. section '1. The clamping sections are suitablysecured to each other as by means of the tapered key 7 which extends throu h the ears 3 of the clamping section 1 an engages the top of 'the clamping section 2.

For the purpose of sealing the gap between the adjacent ends of'the pi 8 and 9, which extend loosely between t e clamping sections '1 and2, I have provided the cooperating packing members 10 and 11, each of which has the same construction, and comprises the ring 12 surrounding the adjacent end of its respective pipe and the transverse rejections 13 at its pposite sides exten in longitudinally of the pipe and-having the1r outer-edges located radla y outward beyond the peripheryof the ring.

extending ears 6 at opposite.

and a separat The transverse member overla of the other c overlapping projections are clamped 'together between the longitudinal shoulders the transverse projections projections of one clamping amping member and these of both clamping sections so that the fluid,

not escape between the'sides of the c section 2 and the ears 3 of the'clamping section 1. Since the clampin sections firmly engage the rings of the pac ing memsuch as water, passing through the pipes can ampmg hers and hold the same in firm contact with i their res ective pipes the fluid cannot escape longitudmally of th clamping sections and the pipe. Therefore the gap between the adjacent ends of the pi es is effectively sealed.

' or the purpose of permiting relative angular movement of the pipesto take care of depressions or projections. of the ground or to take care of bends in the pipe line, the packing members of some flexible -material such as rubber so that the gap between the ends of the pipes will remain sealed but they can be .moved sides, of a cooperating clamping section having longitudinally extending shoulders at its opposite sides, said sections surrounding adjacent ends of a pair of pipes and means for sealing th gap between the adjacent ends of the pipes including a unitary packing member surroundin 1y formed unitary packing member surrounding the end of the pther of the pipes and provided with transverse projectlons at its opposite sides overlapping the first-mentioned packing member and enshoulders of said gage'abl'e between the clam ing sections.

10 and 11 are formed the end of-one of the pipes.

e pipes between the- Inn n a pipe coupling, the combination with a. clamping section having longitudi- "tions surrounding nally extending shoulders at its opposite sides, of a cooperating clamping section having longitudinally extending shoulders at its opposite sides, said sections surrounding adjacent ends of a pair of pipes and means for sealing the gap between the adjacent ends of the pipes including separately formed packing members having ring porpipes and detachably overlapping portions engageable between the longitudinally extending shoulders of said clamping sections.

3. In a pipe coupling, the combination with a clamping section having longitudinally extending shoulders at itsopposite sides, of a cooperating clamping section having longitudinally extending shoulders at its opposite sides, said sections loosely surrounding adjacent ends of a pair of pipes, and means for sealing the gap between the adjacent ends of the pipes andpermitting relative angular movement of the pipes, said means including a' unitary packing member surrounding an end of one of the pipes and a separately formed second packing member surrounding the end of the other of the pipes and provided with flexible transverse projections freely overlapping the first-mentioned packing member and engageable between the shoulders of' said sections.

4. In a pipe. coupling, the combination with a segmental clamping section having longitudinally extending shoulders at its opposite sides, and transverse inwardly extending ribs near its opposite ends and extending between said shoulders, of a coopcrating segmental clamping section having longitudinally extending shoulders at its opposite sides and transverse ribs near its oppoiste ends extending between said shoulders, said sections surrounding adjacent ends of a pair of pipes, a unitary packing ring between the two said clamping sections slidable upon the end of one of the pipes and engageable with the transverse ribs, upon said clamping sections and a separately formed unitary packing ring clamping sections slidable upon the end of the other of the pipes and engageable with the transverse ribs at the opposite ends of said sections, said second-mentioned packing ring having transverse portions freely overlap ping said first-mentioned packing ring and engageable between t e shoulders of said clamping sections. Y

5. In a. pipe coupling, the combination with a clamping section, of a cooperating clamping section, said sections surrounding a pipe line having an opening therein, and means for sealing the opening including a unitary packing member between said sections and the pipe line at one end of the opening and a'separately formedsecondpack ing member between said sections and the the adjacent ends of the between said pipe line at the other end of the opening, sald second packing member having portions freely overlapping said first-mntoned packing member,

6. The combination with a segmental clamping section engageable with a pipe an having oppositely positioned ears extending from its edges, of a. cooperating clamping section engageable with theopposite side of the pipe and engageable between said ears and having spaced transversely extending ears engageable on opposite sides of said first mentioned ears, means engageable with said first mentioned ears and cooperating clampingthereof for forcing said sections toward each 0th r, and sealing means between one of said clamping sections, and the pipe.

7. In a pipe coupling, a segmental clamping section, provided with longitudinal shoulders on its inner face and intermediate thereof, a com lementary clamping section telescoping wit in said first section, with the forward edges thereof adjacent said shoulders, said sections surrounding the adjacent ends of two pipes, packing members, and means extending across the second clamping section and engaging opposite side portions of the first clamping section for securingsaid sections together for engaging said packing members between said shoulders and the edges of said second section;

8. In a pipe coupling, the combination with a pair of clamping sections each having longitudinally extending clamping shoulders at itsopposite sides, said sections being engageable with adjoining ipe ends, of a pair of separately formed packing rings disposed between said clamping sections, each slidable upon one of said pipe ends, and two pairs of packing members, each pair projecting from one of said rings toward the other, said members having beveled engaging ends engageable between'said clamping sections, and adapted to be pressed into sealing engagement by said sections.

9. In a: pi e coupling, the combination with a pair oiicomplement'ary clamping sections adapted to receive between them the ends of-adjoining pipes, said sections having cooperating pairs of clamping shoulders and one of said sections. having at-the outer .-sides of its clamping shoulders, a pair of Tprojecting lugs adapted to embrace the other section, packing means clamping shoulders of the two sections, and a clamping member engaging said lugs, and bearing upon the section between said lugs to sub ect it to a clamping pressure toward the other section.

In testimony whereof I allix my signature.

ALBIN FARNSTROM.

engaged between the section and extending transversely and 

